UPS5000-E-(30 kVA-120 kVA)-FM
User Manual
2 Overview
Issue 01 (2020-04-27)
Copyright © Huawei Technologies Co., Ltd.
26
2.3.4 Power Distribution Module
Figure 2-11
Power distribution module
(1) Battery input terminals
(2) Mains input terminals
(3) Bypass input terminals
(4) Output terminals
Functions
The power distribution module provides mains and bypass three-phase, four-wire input
terminals and PE on the UPS rack, provides three-phase, four-wire output terminals for
the whole system, and provides battery string input terminals.
By using the maintenance bypass switch, the power module and bypass module inside
the cabinet can be maintained without disconnecting power supply.
You can short-circuit the mains and bypass input terminals using copper bars, so that two
mains inputs merge into one mains input.
2.3.5 Control Module
2.3.5.1 Overview
In a standard configuration, the control module consists of two ECMs, one dry contact card,
and one monitoring interface card (from left to right). The four cards are hot swappable. One
subrack is reserved above the dry contact card. A backfeed protection card or dry contact
extended card can be inserted into this subrack.